Malicious PDF — malware analysis report

Static analysis result for SHA-256 18acf3e4dcc49f34…

MALICIOUS

PDF

373.1 KB Created: 2022-03-25 03:13:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 1448bd2fe4fc0c8c5decf188fff84b70 SHA-1: d1dcc856d8b86093029afdda0a246c0378da370f SHA-256: 18acf3e4dcc49f34c77db1d381101ab78aaf756ca1f40ffb8fd092ab5b267057
291 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6448

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR business lure with obfuscated text critical PDF_QR_BUSINESS_LURE_OBFUSCATED_TEXT
    PDF contains a QR-like image and business-process scan instructions that only match after removing invisible Unicode control characters. This indicates deliberate text obfuscation in a QR phishing lure rather than a normal QR code.
  • QR-code business verification phishing lure high PDF_QR_PHISHING_LURE
    PDF contains a QR-like image and visible text instructing the recipient to scan or use a QR code for verification, HR, payroll, policy, email, signature, or similar business-process activity. This is a high-signal quishing pattern even when the PDF has no active JavaScript or URI action.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lazav.co.za/XSRYdR1H?utm_term=the+hitchhiker%27s+guide+to+the+galaxy+movie+download+free PDF link annotation
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16208c5c571c2e---gevuzukelikuforuvimafu.pdfIn PDF document text
    • https://hamayeshniroo.com/shop/file/lujiwemijida.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16231c15572dbe---27081820202.pdfIn PDF document text
    • http://www.s-prom.si/fileupload/file/73206040054.pdfIn PDF document text
    • http://stfurnimart.com/file_media/file_image/file/junotode.pdfIn PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/rqa5d2des0000h738p2i46pkq4/82523935551.pdfIn PDF document text
    • http://bcma.com.bd/backend/web/kcfinder/upload/files/gikepegetuzanogusejuloj.pdfIn PDF document text
    • http://medica-eg.com/userfiles/file/bajurofiresukosukodo.pdfIn PDF document text
    • http://confidenceagricare.com/assets/ckeditor/kcfinder/upload/files/20562398375.pdfIn PDF document text
    • https://garmin1.ddbseven.cl/userfiles/file/61014048414.pdfIn PDF document text
    • http://massintech.ru/img/outer/files/durupofexamedebomagoso.pdfIn PDF document text
    • http://gidromall.ru/img/uploads/file/detunabatugijumu.pdfIn PDF document text
    • https://shinko-tw.com/UserFiles/file/pexidotepukuba.pdfIn PDF document text
    • http://mislenyiallatorvos.hu/userfiles/file/70669095196.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623d056fa5acc---finasan.pdfIn PDF document text
    • http://thietbinuoitom.vn/uploads/userfiles/file/92109086775.pdfIn PDF document text
    • http://laboratoriologos.it/userfiles/files/99847620500.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620cb5b8eb887---vizup.pdfIn PDF document text
    • http://packagingandfoodmachinary.com/userfiles/file/dufirekidobusutit.pdfIn PDF document text
    • http://private-dev.cliczone.fr/upload/userfiles/files/61686365487.pdfIn PDF document text
    • https://gastrotest.co/ckfinder/userfiles/files/ruxigiziraxizisulafikur.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/99b2dbd43ae8f7d75d892253deab80cc/lataw.pdfIn PDF document text
    • http://www.alite.com.br/assets/kcfinder/upload/files/zalawonewuno.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16236710f45f36---golobuvapujinilumiwilasu.pdfIn PDF document text
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16234074a22d00---nefivubumalu.pdfIn PDF document text
    • http://www.gets-trade.com/webroot/upload/files/33151321858.pdfIn PDF document text
    • https://oriental-kitchens.com/userfiles/files/geruvidetamot.pdfIn PDF document text
    • https://gagasanriau.com/a450d92cb6be01b3b3669c18bfca7901/kcfinder/upload/files/97001106746.pdfIn PDF document text
    • http://praconsulgroup.ru/pict/file/24076405236.pdfIn PDF document text
    • http://aven.su/userfiles/file/77440469782.pdfIn PDF document text
    • http://theclelandgroup.com/img/upload/file/babajanodeta.pdfIn PDF document text
    • http://tomaszfilipczak.pl/userfiles/file/rubarixojavoluloru.pdfIn PDF document text
    • http://cosmik-kinoteatr.ru/sadm_files/pikutofakeritor.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa205804b63---sedulexewajejiris.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00056367.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00056367.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56367 17880 bytes
SHA-256: cb2b07eceefb50c71a2f3aed05ddc3fe9ec45f143c1af59f6165c626d173fa3d
font_01_sfnt_off000591ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x591FF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005a91f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A91F 11480 bytes
SHA-256: be58c2b97b9674e42aca85802e059f819faebd93ddd46c01b71fd36e0d0e8bcd